Efforts by the nuclear industry to evaluate check valve failures
Recent studies identified approximately 4000 check valve failures that occurred from 1984-1991. Of these, approximately 1600 were determined to be significant enough to require further analysis. This is to be compared with the existing check valve population of nearly 21,000 valves. The strategy proposed in this paper is to establish a refined, centralized check valve failure/reliability database based in part on existing Institute of Nuclear Power Operations (INPO) Nuclear Plant Reliability Data System (NPRDS) data. Ideally the database would be maintained in a central location, augmented with specific component information, overall reliability information, and updated at least biannually. The data would be available to sort and search as desired. The conceptual plan is provided and possible uses of the database are given.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- Nuclear Regulatory Commission, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 238449
- Report Number(s):
- CONF-940774-4; ON: DE96009878; TRN: 96:015036
- Resource Relation:
- Conference: 3. ASME/NRC symposium on valve and pump testing, Washington, DC (United States), 18-21 Jul 1994; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
Similar Records
The use of check valve performance data to support new concepts (probabilistic risk assessment, condition monitoring) for check valve program
Condition monitoring and testing for operability of check valves and pumps